HP XP20000/XP24000 Reference Manual page 278

M
M-VOL Main volume.
MCU Main control unit.
MIB Management information base. A database of managed objects accessed by network management
protocols. An SNMP MIB is a set of parameters that an SNMP management station can query
or set in the SNMP agent of a network device (for example, a router).
MU Mirror unit.
N
NVS Nonvolatile storage.
O
OND On-Demand function.
P
P-VOL Primary volume.
PA Physical address.
PB Petabyte; equals 1,000^5 bytes (for physical storage such as hard disk drives) or 1,024 TB or
1,024^5 bytes (for logical storage).
PCB Printed circuit board.
PCR Partial Cache Residence.
PDEV Physical device.
PDU Power distribution unit. The rack device that distributes conditioned AC or DC power within a
rack.
Perf Ctrl XP Performance Control function.
Perf Mon Performance Monitor.
PerfCtrlGrp XP Performance Control access group.
PP Program Product option.
PPC Prioritized Port Control (also called HP XP Performance Control and Priority Access).
R
R-VOL Remote volume.
RCU Remote control unit.
S
S-VOL Secondary or remote volume. The copy volume that receives the data from the primary volume.
S/W Switch.
SFP Small form-factor pluggable.
SI Hitachi ShadowImage. Also known as HP StorageWorks XP Business Copy.
SIM Service information message.
SLPR Storage logical partition.
SM Shared memory.
SMPL Simplex.
SSID Subsystem identifier; storage system identifier.
SVP Service processor. A computer built into a disk array. The SVP, used only by an HP service
representative, provides a direct interface to the disk array.
278 Glossary